Goud RDRayudu RMantha VMoore C2020-11-262020-11-262019Goud RD, Rayudu R, Mantha V, Moore C (2019). Impact of Short-circuit Ratio on Grid Integration of Wind Farms - A New Zealand Perspective. New Delhi: 2nd International Conference on Large-Scale Grid Integration of Renewable Energy in India. 04/09/2019-06/09/2019.https://hdl.handle.net/10092/101293The high wind energy potential sites are increasingly remote from the load centers which create problems in integrating wind power plants into power grids. One of the major issues is the short-circuit radio (SSR) at the point of common coupling. A lower short-circuit ratio will lead to a weaker grid which in turn creates power system stability problems. The definition of a weak grid depends on short-circuit ratio values. In New Zealand, it is often noted that the definition of a weak grid, based on SSR, is different from the standard values (of SSR) due to several reasons. New Zealand's grid is long and slender with arguably major generation at one end and load centers on the other side. Close to 80% of daily consumption of electricity is generated from renewables with 5-8% contributed by Wind generation. Wind farm locations in New Zealand share the same difficulties as shared by many nations in terms of remote locations, far away from load centers and wind variability. However, New Zealand wind farm capacity factor is close to 45% and maximum capacity of around 400 hours a year. Over 20 new wind farms have been consented for the future with capacity close to 3GW. This work shares our experience in connecting future wind farms to New Zealand grid and their effect on the weak grid concept. We will discuss the reasons for our definition of short-circuit ratio in New Zealand scenario and, in support, share some results of our simulations.enAll rights reserved unless otherwise statedConference Contributions - Other2020-11-09Fields of Research::40 - Engineering::4008 - Electrical engineering::400803 - Electrical energy generation (incl. renewables, excl. photovoltaics)Fields of Research::40 - Engineering::4008 - Electrical engineering::400805 - Electrical energy transmission, networks and systems